| 1. | She will look after tom day and night .
她会日日夜夜保佑汤姆的。 |
| 2. | Work on the project is going on day and night .
工程正在夜以继日地进行。 |
| 3. | Day and night cannot dwell together .
白昼与黑夜不能同时在一起。 |
| 4. | They battled heroically for seven days and nights .
他们英勇地战斗了7昼夜。 |
| 5. | The enemy kept up their bombardment day and night .
敌军日夜不停地持续轰炸。 |
| 6. | Thus things flow away day and night .
逝者如斯夫，不舍昼夜。 |
| 7. | He 's plodding away day and night .
他一天到晚在勤苦工作。 |
| 8. | The terminator is the boundary between day and night .
地影界线就是白天和黑夜的边界。 |
| 9. | The temperature here varies greatly between day and night .
这里白天和夜晚的温差很大。 |
| 10. | Workmen were labouring day and night to complete the bases .
工人日夜不停地加紧建成那些基地。 |
